Child watching captive killer whale
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Documentary sparks US debate on whales in captivity

A documentary called Blackfish has sparked a debate in the US about whether it is ethical to keep captive killer whales in theme parks such as SeaWorld.

Staff at SeaWorld insist the whales live long and healthy lives in their artificial habitat.

Thee BBC's Alastair Leithead reports.

  • 20 Feb 2015
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